No, dreadlock products can easily be used in ordinary hair, it's all hair products so you can use them in regular hair too. The difference between dreadlock products and komercielle hair products is that dreadlock products are specially developed for dreadlocks. That is. That they are residue free (do not leave amassed ingredients on the hair), rinse easily with water, they therefore do not contain silicone, conditioner etc. Like soften and sharpen the hair.
The advantage of using dreadlock products in ordinary hair is that it doesn't make the hair heavy and greasy, and it helps against scalp problems, its perfectly natural and without all the nasty chemistry.
Use for example. Tightening sprays in ordinary hair as volume / Saltwater Spray.
Use Aloe Vera / Tightening Gel to hug in curly hair. It gives natural teams and care.
Conditioning Sprays and oils can be used for dry tips and as conditioning.
Lock Powder can be used as volumizing and dry shampoo. Sprinkled over the hair and one into the scalp. Gives volume and removes fat and oils.
Dreadlock products can thus be used in regular smooth hair too, as well as in dreadlocks.